1. Fletcher CDM (1996) Vascular tumors: an update with emphasis on the diagnosis of angiosarcoma and borderline vascular neoplasms. Monogr Pathol 39:181–206
2. Montgomery EA, Fetsch JF (1995) Malignant vascular tumors. In: Stehbens WE, Lie JT (eds) Vascular pathology. Chapman and Hall Medical, London, pp 764–776
3. Enzinger FM, Weiss SW (1995) Malignant vascular tumors. In: Enzinger FM, Weiss SW (eds) Soft tissue tumors, 3rd edn. Mosby-Year Book, St. Louis, pp 641–677
4. Gentry RW (1949) Vascular malformations and vascular tumors of the gastrointestinal tract. Int Abstr Surg 88:281–323
5. Steiner CA, Palmer LH (1949) Angiosarcoma of the colon. Ann Surg 129:538–542